Title :
A Rooter for Video Signals
Author_Institution :
Bell Telephone Laboratories, Inc., Murray Hill, N.J.
Abstract :
This paper describes a device which takes the nth root of the instantaneous amplitude of a video signal. Its function is to linearize the over-all transfer characteristic, and thus to improve the picture quality in a television system using linear camera tubes and conventional cathode-ray viewing tubes.
Keywords :
Brightness; Cameras; Cathode ray tubes; Circuits; Preamplifiers; Pulse amplifiers; Signal generators; TV; Telephony; Voltage;
Journal_Title :
Proceedings of the IRE
DOI :
10.1109/JRPROC.1950.234102
